#99CF59#99CF59

#99CF59 is a light, vivid yellow-green. Relative luminance 0.521; OKLCH L 79.2% C 0.159 H 129.9°. Best body text is #000000 at 11.42:1 contrast (WCAG AA passes).

Color values

HEX	#99CF59
RGB	rgb(153, 207, 89)
HSL	hsl(87, 55%, 58%)
HSV	hsv(87, 57%, 81%)
CMYK	cmyk(26.1%, 0%, 57%, 18.8%)
CIE-LAB	lab(77.35, -36.47, 52.11)
CIE-LCH	lch(77.35, 63.61, 124.98°)
OKLab	oklab(79.23% -0.1022 0.122)
OKLCH	oklch(79.23% 0.159 129.9)
XYZ	xyz(37.2525, 52.1183, 17.5464)
Luminance	0.5212 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#99CF59 #8F59CF

analogous

#CFCA59 #99CF59 #5ECF59

triadic

#99CF59 #5999CF #CF5999

tetradic

#99CF59 #59CFCA #8F59CF #CF595E

square

#99CF59 #59CFCA #8F59CF #CF595E

split-complementary

#99CF59 #595ECF #CA59CF

monochromatic

#5B8727 #7BB635 #99CF59 #B6DD88 #D3EAB8

Accessibility & contrast

On white

1.84

#99CF59 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.42

#99CF59 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #99CF59

11.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##99CF59	#FFFFFF	#000000	##000000
##99CF59	1.00	1.84	11.42	11.42
#FFFFFF	1.84	1.00	21.00	21.00
#000000	11.42	21.00	1.00	1.00
##000000	11.42	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D8C24D

Deuteranopia (green-blind)

#D0BE61

Tritanopia (blue-blind)

#9CC7B5

Achromatopsia (no color)

#BFBFBF

Design tokens & code

CSS

--color: #99cf59;
/* rgb */ color: rgb(153, 207, 89);
/* oklch */ color: oklch(79.2% 0.159 129.9);

Tailwind

colors: {
  custom: {
    50: '#bade8c',
    500: '#99cf59',
    950: '#000000',
  },
}

SCSS

$custom: #99cf59;
$custom-light: #bade8c;
$custom-dark: #000000;

JSON

{
  "hex": "#99cf59",
  "rgb": {
    "r": 153,
    "g": 207,
    "b": 89
  },
  "hsl": {
    "h": 87.458,
    "s": 55.14,
    "l": 58.039
  },
  "oklch": {
    "l": 0.79227,
    "c": 0.15917,
    "h": 129.9
  },
  "luminance": 0.52119
}

Semantic roles & 50–950 ramp

primary

#99CF59

secondary

#633F8E

accent

#49DE8E

background

#FDFEFC

surface

#F8FCF4

border

#D1D5CE

text

#12150C

muted

#82847F

Preview Lab

Preview with #99CF59

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →